/*******************************************************************************
 *  * Copyright 2016 Impetus Infotech.
 *  *
 *  * Licensed under the Apache License, Version 2.0 (the "License");
 *  * you may not use this file except in compliance with the License.
 *  * You may obtain a copy of the License at
 *  *
 *  *      http://www.apache.org/licenses/LICENSE-2.0
 *  *
 *  * Unless required by applicable law or agreed to in writing, software
 *  * distributed under the License is distributed on an "AS IS" BASIS,
 *  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  * See the License for the specific language governing permissions and
 *  * limitations under the License.
 ******************************************************************************/
package com.impetus.dao.utils;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.impetus.kundera.KunderaException;

/**
 * The Class PropertyReader.
 */
public class PropertyReader
{

    /** The logger. */
    private static Logger LOGGER = LoggerFactory.getLogger(PropertyReader.class);

    /**
     * Gets the props.
     *
     * @param fileName
     *            the file name
     * @return the props
     * @throws Exception
     *             the exception
     */
    public static Properties getProps(String fileName) throws Exception
    {
        Properties properties = new Properties();
        InputStream inputStream = PropertyReader.class.getClassLoader().getResourceAsStream(fileName);

        if (inputStream != null)
        {
            try
            {
                properties.load(inputStream);
            }
            catch (IOException e)
            {
                LOGGER.error("JSON is null or empty.");
                throw new KunderaException("JSON is null or empty.");
            }
        }
        else
        {
            throw new KunderaException("Property file: [" + fileName + "] not found in the classpath");
        }
        return properties;
    }

}
